Scalability is a hot topic in tech, and every programming language or framework provides its own way of handling high loads of traffic.

Today, we’re going to see an easy and straightforward example about Node.js clustering. This is a programming technique which will help you parallelize your code and speed up performance.

“A single instance of Node.js runs in a single thread. To take advantage of multi-core systems, the user will sometimes want to launch a cluster of Node.js processes to handle the load.”- Node.js Documentation

We’re gonna create a simple web server using Koa, which is really similar to